wildmeshing · daniel-zint · Mar 18, 2026 · Mar 10, 2026 · Mar 11, 2026 · Mar 11, 2026
diff --git a/.github/workflows/continuous.yml b/.github/workflows/continuous.yml
@@ -27,7 +27,7 @@ jobs:
             name: Linux
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4.1.6
+        uses: actions/checkout@v6
         with:
           fetch-depth: 10
 
@@ -39,7 +39,7 @@ jobs:
 
       - name: Cache Build
         id: cache-build
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ${{ env.CACHE_PATH }}
           key: ${{ runner.os }}-${{ matrix.config }}-cache-${{ github.sha }}
@@ -84,7 +84,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4.1.6
+        uses: actions/checkout@v6
         with:
           fetch-depth: 10
 
@@ -95,7 +95,7 @@ jobs:
 
       - name: Cache Build
         id: cache-build
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ${{ env.CACHE_PATH }}
           key: ${{ matrix.os }}-${{ matrix.config }}-cache-${{ github.sha }}
@@ -140,12 +140,16 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4.1.6
+        uses: actions/checkout@v6
         with:
           fetch-depth: 10
 
-      - name: Install Ninja
-        uses: seanmiddleditch/gha-setup-ninja@master
+      # - name: Install Ninja
+      #   uses: seanmiddleditch/gha-setup-ninja@master
+
+      # - name: VCPKG
+      #   run: |
+      #     vcpkg install gmp:x64-windows
 
       - name: Dependencies
         run: |
@@ -154,7 +158,7 @@ jobs:
 
       - name: Cache build
         id: cache-build
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ${{ env.SCCACHE_DIR }}
           key: ${{ runner.os }}-${{ matrix.config }}-cache-${{ github.sha }}

diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -70,6 +70,7 @@ include(spdlog)
 include(paraviewo)
 include(fenvelope)
 include(nanoflann)
+include(polysolve)
 
 include(simple_bvh)
 # Sort projects inside the solution
@@ -128,6 +129,7 @@ target_link_libraries(wildmeshing_toolkit PUBLIC
     paraviewo::paraviewo
     FastEnvelope::FastEnvelope
     simple_bvh::simple_bvh
+    polysolve::polysolve
 )
 
 if(MSVC)

diff --git a/app/CMakeLists.txt b/app/CMakeLists.txt
@@ -20,11 +20,14 @@ endif()
 # ###############################################################################
 
 add_executable(wmtk_app main.cpp)
-target_link_libraries(wmtk_app PRIVATE 
+target_link_libraries(wmtk_app PUBLIC 
+    wmtk::toolkit
     nlohmann_json::nlohmann_json
     CLI11::CLI11
 )
 
+wmtk_copy_dll(wmtk_app)
+
 if(WMTK_PYBIND)
     add_subdirectory(pywmtk)
 endif()
diff --git a/cmake/FindGMP.cmake b/cmake/FindGMP.cmake
@@ -28,16 +28,21 @@ if(WIN32)
     find_file(GMP_RUNTIME_LIB
         NAMES
             gmp.dll
+            gmp-10.dll
             libgmp-10.dll
         PATHS
             ENV GMP_DIR
             ${LIB_INSTALL_DIR}
         PATH_SUFFIXES
+            bin
             lib
     )
     list(APPEND GMP_EXTRA_VARS GMP_RUNTIME_LIB)
+
+    message(STATUS "Windows GMP Paths: \n  ${GMP_INCLUDES}\n  ${GMP_LIBRARIES}\n  ${GMP_RUNTIME_LIB}")
 endif()
 
+
 include(FindPackageHandleStandardArgs)
 find_package_handle_standard_args(GMP
     REQUIRED_VARS

diff --git a/cmake/recipes/fenvelope.cmake b/cmake/recipes/fenvelope.cmake
@@ -10,21 +10,21 @@ set(FAST_ENVELOPE_ENABLE_TBB OFF)
 
 include(cli11)
 
-# HACK because there is a linker error on Windows otherwise
-if(WIN32)
-    set(FAST_ENVELOPE_WITH_GEOGRAM_PREDICATES ON)
-    set(FAST_ENVELOPE_WITH_GEOGRAM_PSM_PREDICATES OFF)
-else()
-    set(FAST_ENVELOPE_WITH_GEOGRAM_PREDICATES OFF)
-    set(FAST_ENVELOPE_WITH_GEOGRAM_PSM_PREDICATES ON)
-endif()
+# # HACK because there is a linker error on Windows otherwise
+# if(WIN32)
+#     set(FAST_ENVELOPE_WITH_GEOGRAM_PREDICATES ON)
+#     set(FAST_ENVELOPE_WITH_GEOGRAM_PSM_PREDICATES OFF)
+# else()
+#     set(FAST_ENVELOPE_WITH_GEOGRAM_PREDICATES OFF)
+#     set(FAST_ENVELOPE_WITH_GEOGRAM_PSM_PREDICATES ON)
+# endif()
 
 
 message(STATUS "Third-party: creating target 'FastEnvelope::FastEnvelope'")
 
 
 include(CPM)
-CPMAddPackage("gh:daniel-zint/fast-envelope#a631e3555ff7bd495a66d61a311f5aafe00a2f08")
+CPMAddPackage("gh:daniel-zint/fast-envelope#0046a216171237aab654dd1580aa8a5eaef675ee")
 
 set_target_properties(FastEnvelope PROPERTIES FOLDER third_party)
 add_library(FastEnvelope::FastEnvelope ALIAS FastEnvelope)
diff --git a/cmake/recipes/gmp.cmake b/cmake/recipes/gmp.cmake
@@ -5,11 +5,11 @@ if(TARGET gmp::gmp)
     return()
 endif()
 
+message(STATUS "Third-party: creating target 'gmp::gmp'")
+
 # Download precompiled .dll on Windows
 include(gmp_mpfr)
 
-message(STATUS "Third-party: creating target 'gmp::gmp'")
-
 # Find_package will look for our downloaded lib on Windows, and system-wide on Linux/macOS
 find_package(GMP REQUIRED)
 

diff --git a/cmake/recipes/gmp_mpfr.cmake b/cmake/recipes/gmp_mpfr.cmake
@@ -18,15 +18,28 @@ if(WIN32)
         lib
     )
 
-    if(GMP_TRY_FIND_INCLUDES AND GMP_TRY_FIND_LIBRARIES)
-        message(STATUS "System GMP found: ${GMP_TRY_FIND_INCLUDES}")
+    find_file(GMP_TRY_FIND_RUNTIME_LIB
+        NAMES
+            gmp.dll
+            gmp-10.dll
+            libgmp-10.dll
+        PATHS
+            ENV GMP_DIR
+            ${LIB_INSTALL_DIR}
+        PATH_SUFFIXES
+            bin
+            lib
+    )
+
+    if(GMP_TRY_FIND_INCLUDES AND GMP_TRY_FIND_LIBRARIES AND GMP_TRY_FIND_RUNTIME_LIB)
+        message(STATUS "System GMP found: \n  ${GMP_TRY_FIND_INCLUDES}\n  ${GMP_TRY_FIND_LIBRARIES}\n  ${GMP_TRY_FIND_RUNTIME_LIB}")
     else()
         message(WARNING "Third-party: downloading gmp + mpfr. The code may be crazy slow! Please install GMP using your preferred package manager. Do not forget to delete your <build>/CMakeCache.txt for the changes to take effect.")
 
         include(CPM)
         CPMAddPackage(
             NAME gmp_mpfr
-            URL "https://github.com/CGAL/cgal/releases/download/v5.2.1/CGAL-5.2.1-win64-auxiliary-libraries-gmp-mpfr.zip"
+            URL "https://github.com/CGAL/cgal/releases/download/v6.1.1/CGAL-6.1.1-win64-auxiliary-libraries-gmp-mpfr.zip"
             DOWNLOAD_ONLY YES
         )
 

diff --git a/cmake/recipes/nanoflann.cmake b/cmake/recipes/nanoflann.cmake
@@ -15,7 +15,4 @@ CPMAddPackage(
     "NANOFLANN_USE_SYSTEM_GTEST OFF"
     "MASTER_PROJECT_HAS_TARGET_UNINSTALL ON"
 )
-set_target_properties(nanoflann PROPERTIES FOLDER third_party)
-if(WIN32)
-    set_target_properties(nanoflann_uninstall PROPERTIES FOLDER third_party)
-endif()
+set_target_properties(nanoflann PROPERTIES FOLDER third_party)
diff --git a/cmake/recipes/polysolve.cmake b/cmake/recipes/polysolve.cmake
@@ -0,0 +1,33 @@
+# PolySolve (https://github.com/polyfem/polysolve)
+# License: MIT
+
+if(TARGET polysolve::polysolve)
+    return()
+endif()
+
+message(STATUS "Third-party: creating target 'polysolve::polysolve'")
+
+# # TODO: this requires a conflicting version of Eigen. Reenable when Eigen 3.4+ is available.
+# set(POLYSOLVE_WITH_ACCELERATE OFF CACHE BOOL "Enable Apple Accelerate" FORCE)
+
+include(CPM)
+CPMAddPackage(
+    NAME polysolve
+    GITHUB_REPOSITORY polyfem/polysolve
+    GIT_TAG 57dbeadcb65932a38508e3a5a07e98732a1c50bc
+    OPTIONS
+    "POLYSOLVE_WITH_ACCELERATE OFF"
+    "POLYSOLVE_WITH_CHOLMOD OFF"
+    "POLYSOLVE_WITH_UMFPACK OFF"
+    "POLYSOLVE_WITH_SUPERLU OFF"
+    "POLYSOLVE_WITH_SPQR OFF"
+    "POLYSOLVE_WITH_MKL OFF"
+    "POLYSOLVE_WITH_CUSOLVER OFF"
+    "POLYSOLVE_WITH_PARDISO OFF"
+    "POLYSOLVE_WITH_HYPRE OFF"
+    "POLYSOLVE_WITH_AMGCL OFF"
+    "POLYSOLVE_WITH_SPECTRA OFF"
+)
+
+set_target_properties(polysolve PROPERTIES FOLDER third_party)
+set_target_properties(polysolve_linear PROPERTIES FOLDER third_party)
diff --git a/cmake/wmtk_copy_dll.cmake b/cmake/wmtk_copy_dll.cmake
@@ -57,8 +57,8 @@ function(wmtk_copy_dll target)
         message(FATAL_ERROR "wmtk_copy_dll() was called on a non-executable target: ${target}")
     endif()
 
-    # Create a custom command to do the actual copy. This needs to be executed before Catch2's POST_BUILD command,
-    # so we define this as a PRE_LINK command for the executable target.
+    # Create a custom command to do the actual copy. We use POST_BUILD so the executable output directory
+    # always exists before attempting to copy dependencies.
     add_custom_command(
         TARGET ${target}
         PRE_LINK
@@ -80,10 +80,21 @@ function(wmtk_copy_dll target)
 
         # Instruction to copy target file if it exists
         string(APPEND COPY_SCRIPT_CONTENT
-            "if(EXISTS \"$<TARGET_FILE:${DEPENDENCY}>\")\n    "
-                "execute_process(COMMAND ${CMAKE_COMMAND} -E copy_if_different "
-                "\"$<TARGET_FILE:${DEPENDENCY}>\" "
-                "\"$<TARGET_FILE_DIR:${target}>/$<TARGET_FILE_NAME:${DEPENDENCY}>\")\n"
+            "set(SRC_FILE \"$<TARGET_FILE:${DEPENDENCY}>\")\n"
+            "if(EXISTS \"\${SRC_FILE}\")\n"
+            "    set(DEST_FILE \"$<TARGET_FILE_DIR:${target}>/$<TARGET_FILE_NAME:${DEPENDENCY}>\")\n"
+            "    message(STATUS \"Copying: \${SRC_FILE} -> \${DEST_FILE}\")\n"
+            "    execute_process(COMMAND \"${CMAKE_COMMAND}\" -E copy_if_different "
+            "\"\${SRC_FILE}\" \"\${DEST_FILE}\" "
+            "RESULT_VARIABLE COPY_RESULT ERROR_VARIABLE COPY_ERROR)\n"
+            "    if(NOT COPY_RESULT EQUAL 0)\n"
+            "        message(FATAL_ERROR \"Failed to copy \${SRC_FILE} to \${DEST_FILE} for target ${target}. Result: \${COPY_RESULT}, Error: \${COPY_ERROR}\")\n"
+            "    endif()\n"
+            "    if(NOT EXISTS \"\${DEST_FILE}\")\n"
+            "        message(FATAL_ERROR \"Copy completed (exit 0) but destination file does not exist: \${DEST_FILE}\")\n"
+            "    endif()\n"
+            "else()\n    "
+            "message(STATUS \"Dependency does not exist (will not copy): \${SRC_FILE}\")\n"
             "endif()\n"
         )
     endforeach()

diff --git a/components/cmake/add_component.cmake b/components/cmake/add_component.cmake
@@ -25,7 +25,7 @@ function(add_component COMPONENT_NAME)
      "components_map[\"${COMPONENT_NAME}\"] = wmtk::components::${COMPONENT_NAME}::${COMPONENT_NAME};\n")
 
     # add component to wmtk app
-    target_link_libraries(wmtk_app PRIVATE wmtk::${COMPONENT_NAME})
+    target_link_libraries(wmtk_app PUBLIC wmtk::${COMPONENT_NAME})
     # add component to python bindings
     if(WMTK_PYBIND)
         target_link_libraries(pywmtk PUBLIC wmtk::${COMPONENT_NAME})